نتایج جستجو برای: quartz deposit
تعداد نتایج: 29080 فیلتر نتایج به سال:
Gazestan deposit is located about 185 km of Yazd, in the Bafgh – Posht e Badam Metallogenic belt, consists of Infracambrian carbonate, shale, tuff, sandstone and volcanic rocks. Acid to basic green rocks (rhyolite, dacite and basalt) are host for iron and phosphate mineralization. The alteration process is more intence in the volcanic rocks including, actinolite, chloritization, silicification ...
The Shibaogou deposit is located in the Luanchuan ore district within East Qinling orogenic belt (EQOB), central China, which a newly discovered Mo–Pb–Zn skarn deposit. and bodies are mostly hosted contact zones between porphyritic granite carbonaceous sedimentary rocks from Guandaokou sets. A study combined of geochronology, fluid inclusion (FI), stable isotopes was performed to constrain mine...
The medium-sized Songjianghe Au deposit is located in the southeastern part of Jiapigou-Haigou gold belt (JHGB) central eastern Jilin Province, NE China. mineralization primarily characterized by disseminated-style ores and hosted low-/medium-grade metamorphic rocks Seluohe Group. ore bodies are governed NNW-striking brittle-ductile structures spatially correlated with silicic sericitic alterat...
The paper presents the geological and structural position of large Svetlinsky gold deposit in Kochkar anticline (Southern Urals), localized zone Late Paleozoic (D3) deep thrust western dip. study confirms clarifies notion its multiphase polychronism. caused bending moments wings, subsidence lying crust, emergence a shallow marine basin with rapid accumulation terrigenous carbonate sediments (C1...
Mahour 2 lead deposit is located in the east of Lut block and 145Km west of Nehbandan and about 2 km north west of Mahour copper deposit. Altered andesitic rocks are the main host of lead deposit. Plagioclase, quartz, hornblende and biotite are major minerals of andesitic rocks. Plagioclase, the most abundant mineral, had mostly replaceded by secondary minerals such as sericite, chlorite and ...
The Rahmatabad Kaolin deposit is located about 25 km southwest of Nain. This deposit is formed by alteration process from Eocene volcanic rocks and pyroclastic units. Mineralogical studies display that the kaolinite, jarosite, hematite, quartz, calcite, anortite, alunite, diaspore, chlorite, montmorillonite, illite, albite, orthoclase, halite, sanidine, goethite, malachite, azurite and sericite...
Sorkheh Dizaj apatite - iron oxide deposit is located in southeast of Zanjan, within the Tarom subzone of Western Alborz - Azarbaijan structural zone. The oldest units in the area are Eocene trachyte, trachyandesite, olivine basalt and volcanoclastic brecciated tuff and lapilli tuff intruded by a quartz-monzonite, monzonite and granite subvolcanic pluton of Late Eocene - Early Oligocene age. Th...
sarcheshmeh porphyry copper deposit is located 65 km southwest of rafsanjan in kerman province. the sarcheshmeh deposit belongs to the southeastern part of urumieh-dokhtar magmatic assemblage (i.e., dehaj-sarduyeh zone). intrusion of sarcheshmeh granodiorite stock in faulted and thrusted early-tertiary volcano-sedimentary deposits, led to mineralization in miocene. in this research, the mass ch...
the cheshmeh hafez polymetal deposit is located in troud – chahshirin mountain range in southeastern damghan. in this province, the volcanism and associated mineralization are closely related to major faults anjilo and troud with nw-se trend. the exposed rocks in the study area consist of volcano clastic sequence of sandstone, tuff, volcano breccias and mostly andesitic and andesitic- basalt fl...
The Mesozoic Xuefengshan Orogen (XFSO) in South China hosts abundant gold ore deposits. XFSO records a history of polyphase tectonic deformation and the structural controls on mineralization are poorly understood. recently discovered quartz-vein type Huanggou deposit southern is characterized by multiple stages represents an excellent natural laboratory for deciphering complex orogenic belt. A ...
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